Download or read book Intrinsic Remediation Engineering Evaluation Cost Analysis for Site SS27 XYZ Dover AFB Dover DE written by and published by . This book was released on 1996 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of the investigation performed by Parsons Engineering Science, Inc. (Parsons ES) at Dover Air Force Base (AFB), Delaware to evaluate the use of intrinsic remediation (natural attenuation) with long-term monitoring (LTM) as a remedial option for dissolved benzene, toluene, ethylbenzene, and total xylenes (BTEX) contamination in the shallow saturated zone. Parsons ES conducted the field investigation during April 1994 at Site SS27/XYZ (currently known as fueling pads AA, BB, and CC). The source of the contamination is assumed to be from leaking pipelines and associated equipment. BTEX and total volatile hydrocarbons (TVH) were determined to be dissolved in groundwater and adsorbed to soils. Residual light nonaqueous-phase liquid (LNAPL) was found throughout the soil column, both above and below the groundwater interface. Also, mobile LNAPL (free product) was observed at several existing wells and monitoring points. This study focused on the impact of the dissolved BTEX and residual and mobile LNAPL in the shallow groundwater system at the site. Potential electron acceptors were analyzed to quantify ongoing biodegradation. Site history and the results of soil and groundwater investigations conducted previously are also summarized in this report.
Download or read book Work Plan for an Engineering Evaluation Cost Analysis in Support of the Intrinsic Remediation Natural Attenuation Option written by and published by . This book was released on 1994 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work plan, prepared by Engineering-Science, Inc. (ES), presents the scope of work required for the collection of data necessary to conduct an engineering evaluation/cost analysis (EE/CA) for remediation of groundwater contaminated with JP-4 jet fuel at fuel pumping station 950 at site SS27/XYZ located at Dover Air Force Base (AFB), Delaware. Several remedial options will be evaluated during the EE/CA, including free product removal; groundwater extraction, treatment, and reinjection (i.e., pump and treat); air sparging; and natural contaminant attenuation (intrinsic remediation) with long-term monitoring. All hydrogeologic and groundwater chemical data necessary to evaluate the various remedial options will be collected under this program; however, this work plan is oriented toward the collection of hydrogeologic data to be used as input into the Bioplume groundwater model in support of intrinsic remediation for restoration of fuel-hydrocarbon-contaminated groundwater.
Download or read book Intrinsic Remediation Engineering Evaluation Cost Analysis for the Former Car Care Center Bolling Air Force Base Washington District of Columbia written by and published by . This book was released on 1997 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report was prepared for the Air Force Center for Environmental Excellence (AFCEE) by Parsons Engineering Science, Inc. (Parsons ES) as an addendum to the Final Intrinsic Remediation Engineering Evaluation/Cost Analysis (EE/CA) for the Former Car Care Center, Bolling Air Force Base (AFB), Washington, District of Columbia (DC) (Parsons ES, 1997a). The EE/CA was conducted to evaluate the use of natural attenuation (intrinsic remediation) with longterm monitoring (LTM) for remediation of fuel hydrocarbon contamination dissolved in groundwater at the Former Car Care Center. This addendum summarizes the results of the third sampling event performed as a part of the evaluation of natural attenuation at the site. This sampling was conducted in September 1997 by researchers from the US Environmental Protection Agency (USEPA) National Risk Management Research Laboratory (NRMRL) Subsurface Protection and Remediation Division. The original EE/CA sampling event was conducted in August 1994, and the first natural attenuation update sampling occurred in June 1996. The main emphasis of this summary is to evaluate changes in dissolved benzene, toluene, ethylbenzene, and xylenes (BTEX) concentrations, plume extent, and natural attenuation mechanisms through time. Results, calculations, and predictions presented in the EE/CA are used as the basis for comparison.
Download or read book Intrinsic Remediation Engineering Evaluation Cost Analysis for the Former AGE Fueling Facility Site Seymour Johnson Air Force Base Goldsboro North Carolina Draft Volume 2 Appendices written by and published by . This book was released on 1996 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Addendum to the Intrinsic Remediation Engineering Evaluation Cost Analysis EE CA for the Former AGE Fueling Facility Site written by and published by . This book was released on 2001 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of an addendum to the Intrinsic Remediation Engineering Evaluation/Cost Analysis (EE/CA) for the Former Aerospace Ground Equipment (AGE) Fueling Facility Site performed by Parsons Engineering Science (Parsons ES) at Seymour-Johnson Air Force Base (AFB), North Carolina (Parsons ES, 1996). The EE/CA was conducted to evaluate the use of intrinsic remediation with long-term monitoring (LTM) to address fuel-hydrocarbon-contaminated groundwater at the AGE Site. This addendum to the EE/CA summarizes the results of a groundwater sampling event conducted in April 2001 by the United States Environmental Protection Agency (US EPA) National Risk Management Research Laboratory (NRMRL) Subsurface Protection Division and Parsons ES. Results of this sampling event are used to evaluate spatial and temporal trends of groundwater contaminants at the AGE Site.
Download or read book Intrinsic Remediation Engineering Evaluation Cost Analysis for Site ST41 Draft written by and published by . This book was released on 1994 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of an engineering evaluation/cost analysis (EE/CA) performed by Parsons Engineering Science, Inc. (Parsons ES) at Elmendorf Air Force Base Alaska to evaluate the use of intrinsic remediation (natural attenuation) with long-term monitoring (LTM) as a remedial option for dissolved benzene, toluene, ethylbenzene, and xylene (BTEX) contamination in the shallow saturated zone in the vicinity of Site ST41 (locally known as Four Million Gallon Hill). For this report, Site ST4l was studied only in the vicinity of the BTEX plume emanating from Tank 601. Soil and ground water contamination is known to occur at the site, with contamination being present in the dissolved and gaseous phases and as residual light nonaqueous-phase liquid (LNAPL) within the aquifer matrix. There is also evidence of mobile LNAPL (free product) at this site. This study focused on the impact of dissolved BTEX on the shallow ground water system at the site. Site history and the results of soil and ground water investigations conducted previously are also summarized in this report.
Download or read book Intrinsic Remediation Engineering Evaluation Cost Analysis for Car Care Center at Bolling Air Force Base Washington written by and published by . This book was released on 1997 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of the investigation performed by Parsons Engineering Science, Inc. (Parsons ES) at Bolling Air Force Base (AFB), District of Columbia to evaluate the use of intrinsic remediation (natural attenuation) with long-term monitoring (LTM) as a remedial option for dissolved benzene, toluene, ethylbenzene, and xylene (BTEX) contamination in the shallow saturated zone. Parsons ES conducted field investigations during August 1994 and June 1996 at the former Car Care Center Site (Building 4). The source of the contamination was leaking underground storage tanks and other associated equipment. BTEX and total volatile hydrocarbons (TVH) was determined to be dissolved in groundwater and absorbed to soils. Residual light nonaqueous phase liquid (LNAPL) was found throughout the soil column, both above and below the groundwater interface. However, minimal mobile LNAPL (free product) was observed at the site during the field investigations. This study focused on the impact of dissolved BTEX and residual LNAPL on the shallow groundwater system at the site.
Download or read book Intrinsic Remediation Engineering Evaluation Cost Analysis for UST Site 870 written by and published by . This book was released on 1995 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of an engineering evaluation/cost analysis (BE/CA) performed by Parsons Engineering Science, Inc. (Parsons ES) formerly known as Engineering-Science, Inc. (ES) at Hill Air Force Base, Utah to evaluate the use of intrinsic remediation (natural attenuation) with long-term monitoring as a remedial option for dissolved-phase benzene, toluene, ethylbenzene, and xylene (BTEX) contamination in the shallow saturated zone near underground storage tank (UST) Site 870. Soil and ground water contamination is known to occur at the site, with contamination being present in the dissolved and gaseous phases, and as light nonaqueous phase liquid (LNAPL). This study focused on the impact of dissolved-phase BTEX on the shallow ground water system at the site. Site history and the results of soil and ground water investigations conducted previously are also summarized in this report.
Download or read book Natural Attenuation written by Patrick V. Brady and published by CRC Press. This book was released on 1997-09-24 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Attenuation: CERCLA, RBCAs, and the Future of Environmental Remediation presents the concept of "natural attenuation"-the tendency of soils to severly limit the toxicity of many types of hazardous waste. It reviews and updates the most recent findings from the field and lab and shows how natural attenuation is rapidly changing the direction and focus of environmental remediation. Outlining the legal and regulatory framework that has made waste remediation so costly, this book shows how applying an understanding of natural attenuation can decrease cleanup outlays while lowering risks to human health. Natural Attenuation: CERCLA, RBCAs, and the Future of Environmental Remediation makes it clear why natural attenuation will be relied upon more and more in the future.
Download or read book Introduction to Phytoremediation of Contaminated Groundwater written by James E. Landmeyer and published by Springer Science & Business Media. This book was released on 2011-09-18 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the reader with the comprehensive view necessary to understand and critically evaluate the design, implementation, and monitoring of phytoremediation at sites characterized by contaminated groundwater. Part I presents the historical foundation of the interaction between plants and groundwater, introduces fundamental groundwater concepts for plant physiologists, and introduces basic plant physiology for hydrogeologists. Part II presents information on how to assess, design, implement, and monitor phytoremediation projects for hydrologic control. Part III presents how plants take up and detoxify a wide range of organic xenobiotics in contaminated groundwater systems, and provides various approaches on how this can be assessed and monitored. Throughout, concepts are emphasized with numerous case studies, illustrations and pertinent literature citations.
Download or read book Natural Attenuation for Groundwater Remediation written by Commission on Geosciences, Environment, and Resources and published by National Academies Press. This book was released on 2000-08-31 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past decade, officials responsible for clean-up of contaminated groundwater have increasingly turned to natural attenuation-essentially allowing naturally occurring processes to reduce the toxic potential of contaminants-versus engineered solutions. This saves both money and headaches. To the people in surrounding communities, though, it can appear that clean-up officials are simply walking away from contaminated sites. When is natural attenuation the appropriate approach to a clean-up? This book presents the consensus of a diverse committee, informed by the views of researchers, regulators, and community activists. The committee reviews the likely effectiveness of natural attenuation with different classes of contaminants-and describes how to evaluate the "footprints" of natural attenuation at a site to determine whether natural processes will provide adequate clean-up. Included are recommendations for regulatory change. The committee emphasizes the importance of the public's belief and attitudes toward remediation and provides guidance on involving community stakeholders throughout the clean-up process. The book explores how contamination occurs, explaining concepts and terms, and includes case studies from the Hanford nuclear site, military bases, as well as other sites. It provides historical background and important data on clean-up processes and goes on to offer critical reviews of 14 published protocols for evaluating natural attenuation.
